Concerto Grosso no. 1, for 2 violins, harpsichord, prepared piano and 21 strings

The Concerto Grosso No. 1 was the first of six concerti grossi by Soviet composer Alfred Schnittke. It was written in 1976–1977 at the request of Gidon Kremer and Tatiana Grindenko who were also the violin soloists at its premiere on 21 March 1977 in Leningrad together with Yuri Smirnov on keyboard instruments and the Leningrad Chamber Orchestra under Eri Klas. It is one of the best-known of Schnittke's polystylistic compositions and marked his break-through in the West.